<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<style>
  .main-content {
    position: fixed;
    top: 62px;
    left: 220px;
    right: 0;
    bottom: 0;
    padding: 10px;
    overflow-y: auto;
    background-color: aliceblue;
    z-index: 1;
  }

  #mainFrame {
    width: 100%;
    height: 100%;
    border: none;
  }
</style>

<div class="main-content">
  <iframe id="mainFrame" src=""></iframe>
</div>
